For frames with American BB shells, this Profile Hop-Up Kit offers a finished look while providing cups, sealed bearings, a tube spacer, cone washers, and flat washers.The spacers and cups have ananodized finish. This bottom bracket will fit many popular 19mm cranks such asProfile Race, Redline Flight, Fit, DK Socialand most any other 19mm crank.Formerly known as the American Bottom Bracket Kit with Hop Up.

Color:Black